{"action":"Upgrade linux to 4.19.37-1 or later.","affected":[{"fixed":"4.19.37-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["4.19.37-1"],"id":"tcs_01M5NE6FSK7577C7DDZ7W4MBQ2","modified_at":"2026-09-21T07:03:18.626923111Z","published_at":"2019-04-09T16:29:01.990Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2019-3887","https://security-tracker.debian.org/tracker/CVE-2019-3887"],"severity":{"label":"medium","score":5.6},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2019-3887#Debian:14/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2019-3887"}],"summary":"A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Rregister (MSR) access with nested(=1) virtualization enabled. In that, L1 guest could access L0's APIC register values via L"}